Cute, and seemingly something she would do for a laugh. From her wiki:

"Describing Larson's off-screen persona, Holly Millea of
Elle wrote in 2016 that she "carries herself like an athlete, lean and solid, surefooted [and] yet her energy is warm and familial, literally embracing".
[11] Anne Helen Petersen of
BuzzFeed
considers her to be "incredibly warm" and adds that she is "a serious nerd, with the endlessly tunneling knowledge of a homeschooler".
[19] Jennifer Dickison of
Porter writes that Larson's "fully formed" personality makes it difficult to categorize her into a conventional slot."